Innuendo was a science fiction fanzine coedited at first by Terry Carr and Dave Rike. Rike's last issue as coeditor was #5, and Carr was solo editor after that.
The first issue of Innuendo was published in July 1956. A total of eleven issues were published by 1960, when Carr joined the editorial team of Void. After Terry Carr's death in 1987, issue 12, which he had begun when still alive, was published in 1990 by Robert Lichtman (Trap Door)and Jerry Kaufman (The Spanish Inquisition).
Innuendo features writing by Greg Benford (Void), Ron Bennett (Ploy), Carl Brandon, Carol Carr, Sidney Coleman, Calvin Demmon, Bill Donaho (Habakkuk), Dean Grennell (Filler, Grue), Arnie Katz (FIAWOL), Ray Nelson, Elmer Perdue, Tom Perry, Harry Warner, Jr. (Horizons), Ted White (Stellar), Walt Willis (Hyphen) and Susan Wood (Aspidistra).
Artwork was by Hannes Bok, Grant Canfield, Ronald Clyne, Cynthia Goldstone, Lee Hoffman (Quandry), Joy Kinney, Trina Robbins, Bill Rotsler, Dan Steffan (Boonfark), Steve Stiles, ATom (The ATom Anthology), and Bjo Trimble (Shangri L'Affaires).
Innuendo frequently reprinted articles from old fanzines that the editors thought important to fan history; among these articles was writing by Charles Burbee, F. Towner Laney (The Acolyte), Jim Harmon, and others.
The article from Innuendo called "The Mind of Chow", by Charles Burbee, was reprinted in the fanzine yearbook, The Best of Fandom 1958.
Innuendo was the fanzine in which Terry Carr and Peter Graham presented "Carl Brandon", a fictitious hoax fan of color, in order to address issues of race within the science fiction community. Real authors who wrote under the name Carl Brandon included Terry Carr, Bob Stewart, Dave Rike, Ron Ellik and Pete Graham. Carl Brandon became a very popular fan within the SF community, whose articles appeared in several fanzines of the time, and who published his own title for a short while.
Later, fans created the Carl Brandon Society -- unrelated to the Carl Brandon hoax except that the Society was about writers of color.
Terry Carr also co-published Klein Bottle from 1959 till 1960 with Miriam Carr, and went on to publish Lighthouse, from 1958 till 1968, the oneshot Entropy in 1964, and numerous other title over many years.